How to restore a dead car battery the correct way: NO EPSOM SALTS
Вставка
- Опубліковано 6 тра 2024
- Can you restore and rejuvenate an old dead car battery? I take an 8 year old dead battery that hadn’t been used in about 3 years and got it to take a charge. This was one of my “mad scientist” experiments to see if it was possible, and it is VERY possible with things you can get easily.
I tried many chemicals solutions to clean lead sulfate off the plates of the dead car battery. I tried using concentrated sulfuric acid, EDTA and citric acid, baking soda and water, as well as sodium hydroxide (lye). The baking soda did nothing (spoiler alert) the others did have a cleaning effect, but some were more destructive than others.
You can de-sulfate a battery using the method I did in this video.
You can get battery acid at the link below
www.acehardware.com/departmen...
everything else you should be able to get at walmart, lowes, or home depot.
Be sure to use protective gear when doing things like this. reactions can happen suddenly and without warning. Be safe. Most of all, wear a respirator. The gases created can be very toxic.
You can learn about lead sulfate here en.wikipedia.org/wiki/Lead(II...
The sulfuric acid I used I got at Lowes here www.lowes.com/pd/Zep-Sulfuric...
The lye I used I got also from lowes here www.lowes.com/pd/Roebic-Labor...
Do not try to use magnesium sulfate (Epsom salts) to restore a battery. It does not work. I have no idea who came up with that, but it is bad science. - Навчання та стиль
For as long as I've been watching your videos (maybe eight years), you never cease to amaze me with the things that you know and can do. It's great to see another video from you, Will!
Wow, thank you!
Excellent work!
Many thanks!
May her rest be long and placid,
she added water to the acid,
The other girl did what she oughta,
she added acid to the water.............
They got rid of tapes and switched to discs
This mad scientist likes taking risks
I dont regret or want to make a redaction
I get off on exothermic reaction
Yooooo! There he is!!!
Magic 🙂
This will sound strange, but try running battery dead flat by putting a bulb on it. Then charge it with the + as the - and the - as the +. Then connect the cars - to the battery + and the cars + to battery -, ;) (reverse polarity)
battery terminals are of different thickness, so the leads would not attach. Second, generally speaking reversing the polarity of a car battery is a no-no. it can cause damage to it. the positive side is made of lead dioxide and the negative of sponge lead. This is something that would cause more damage than repair.
I've tried this and even cut a battery open to see what was going on......they don't short out but what happens is the paste on the negative plates crumble off and fall to the bottom of the case. Not so much the plates in the sleeve but the free plates, doesn't matter cause if one set of plates don't have enough paste to hold a charge, the whole battery is junk. Even if you desulfate a battery, it will only be as good as the paste on the plates are. The way to tell if it's worth trying is to dump the acid in a bucket and see how much dirty (plate paste) comes out. I wasted much time on trying to restore batteries till i finally cut one apart. In the late 80's a car battery would last 5 to 7 years.........now, 2 to 3 years on average. Why? They made the paste for the plates cheaper and it will break away faster.
I understand what you are saying, and I believe there is truth to it. the grids that have been treated with the paste must have had minimal reduction because the battery is still working, and has actually increased it's available amps. What I did is not a permanent fix by any means. I just wanted to see if I could do it. I will be buying a new battery in the near future, but I needed to know for the sake of my own knowledge.
The correct way: If it is older than 5 years, throw it out and get a new one. I have tried many batteries and none did recover in any meaningful way. Not worth the hassle!
your point is valid, I was seeing if there was a way that did work. so far, it is holding a charge and is about 75% of what it was originally. how long it lasts is a different story.
@@Cookingwithdrchill 75% of what? Recovering 75% of Cold Cranking Amps (CCA rating) would be an awesome achievement, that I have never witnessed in my tests.
Getting the battery to hold a charge is just step 1. You need to be able to draw a lot of current without the voltage breaking down. That has never worked for me.
Most of the time my batteries had one shorted cell. Meaning voltage after charging ~10,5V.
And there is pretty much nothing you can do against that.
well right now the battery is still working, but I can tell it isn't going to be a long term solution. The CCA are about 65% of what they were originally. I think that if I try this in the future, I know what to do to increase the restoration to a higher level. This was my first experiment seeing if it was possible. The results I am happy with, but they are by no means something I would trust in the long term.